30. Solving a chemistry problem
46. The concentration of cadmium and zinc ions in a solution is approximately 0.1 mol / l. Calculate the cathode potential (relative to the saturated calomel electrode) at which the electrolytic separation of these ions can be carried out. Standard potentials (from the table) E0 = -0.76 V for zinc) and E0 = -0.40 V for cadmium).
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